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Troubleshooting Intermittent Running Lights Functioning on Trailer Wiring  


I have a 2015 Volkswagen Touareg and pull a 2015 Ranger boat. Just recently started having problems with the running lights which are flickering. I unplugged the wire harness from inside the trailer arm swing and its a 5 way. Plug. Suggestions


Expert Reply:

Intermittent trailer wiring function is almost always caused by either corrosion or in your case an adapter that is not seating properly. What you'll need to do is inspect the trailer wiring connections and clean off all corrosion you find and make sure everything is seating like it should.

expert reply by:
Jameson C
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